Google Ads (formerly Google AdWords) is an online advertising platform developed by Google, where advertisers bid to display brief advertisements, service offerings, product listings, or videos to web users. It can place ads both in the results of search engines like Google Search (the Google Search Network) and on non-search websites, mobile apps, and videos (the Google Display Network). Services are offered under a pay-per-click (PPC) pricing model.

Google Ads is Alphabet Inc's main source of revenue, contributing US$134.8 billion in 2019.